Stereoscope.



No. 674,443. Patented May 2|, I90]. A. W. JONES.

STEREUSCUPE.

(Application filed Nbv. 8, 1900.)

(No Model.)

WITNESSES Tm: mam; ppm 00.. mom-1.0km. wnmnardn, n. c.

UNITED ST TES PATENT OFFICE.

ARTHUR W. JONES, OF KANSAS CITY, MISSOURI.

'STEREOSCOPE.

SPECIFICATION forming part of Letters Patent N 0. 674,443, dated May 21, 1901.

Application filed November 3, 1900. Serial No. 35,407. (No model.)

To all whom it may concern.

Be it known that I, ARTHUR W. JONES, a citizen of the United States, residing at Kansas City, in the county of Jackson, in the State of Missouri, have invented certain new and useful Improvements in Stereoscopes, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, which form a part of this specification.

My invention relates to improvements in stereoscopes, having more particular reference to the mounting of stereoscopic views in such manner and with such relation to the lenses of the stereoscope that a series of such views may be exhibited without handling and placing the separate cards on'which the views are mounted in position before thelenses, and at the same time providing such adjustment as shall facilitate the retention of the views in proper focus and proper vertical relation to the lenses. It is manifest that if a series of pictures illustrative of a certain consecutive series of events or of a certain line of travel be mounted and arranged to be exhibited consecutively before the eyepiece of the stereoscope by simply turning the leaves of a book instead of placing, removing, and replacing the oards upon the rack of an instrument, as is now done, the exhibition of such views will be greatly facilitated, and when the educationaland estheticfeatures presented by such series of views before the modern stereoscope are considered the importance of facilitating theexhibition of such views in series will be appreciated. To accomplish this and other like purposes, my invention consists in certain features of novelty hereinafter described, and pointed out in the claims.

Figure 1 represents an isometric view of a stereoscope with a series of cards adapted to carry stereoscopic pictures mounted thereon. Fig. 2 represents a front view of the head of a stereoscope, showing the manner of mounting the shaft adjustably thereon. Fig. 3 represents a detail cross-section, showing the device to retain the book upon the shaft. Fig. 4 represents a view of the back of the book, partly broken away, to show the device by which the covers and the view cards are bound together. Fig. 5 represents a detail edge View of one of the view-cards, showing flexible strips by which it is bound into the book.

Similar numerals refer to similar parts throughout the several views.

1 represents the hood of a stereoscope. 2 represents the shaft of the same, having a vertical portion 3 and a horizontal portion 4. Said vertical portion is slotted, shown at 5, and thereby adapted to be adjustably secured upon the forward face of the hood by a setscrew 6. Upon said horizontal portion of the shaft is adj ustably mounted a series of stereoscope views reinovablybound together in book form, wherein the streoscopic picture is mounted upon a card 7. Said card, as shown in Fig. 6, is secured to a strip 8 of flexible material, said strip at the heel being thickened and stiffened, as shown at 9. A nu lnber of such leaves are laid together between the lids or covers to form a book, as shown in Fig. 5. Said lids or covers are also flexible, being formed of a stiff portion or board 11, connected with a flexible portion 12, and at the heel on each side provided with a bar or narrow plate of metal 13, and by screws 14 passing through said bars 13 the whole is securely and firmly clamped and bound together. Upon each of said lids or covers is mounted a keeper 15, as shown in Fig. 1, extending across the cover and adapted to be engaged by the horizontal portion 4 of the shaft 2, whereby said book is mounted upon the shaft and is adjustable thereon, so that the stereoscopic pictures mounted upon the cards may be brought into focus before the lensesof the stereoscope, and then as the cards are turned the views will be brought successively before thelensesforexamination. Thefacilitywith which a series of views may be thus exhibited is apparent and does not need comment. The stereoscopic pictures may be mounted upon each side of said cards, and when the views on one side have been exhibited the book may be removed from the shaft and reversed and the vie ws on the other side of said cards exhibited, the capacity of a book of any given size and number of leaves b'eing'thus doubled, and by the book arrangement of the views and the arrangement of the book upon the shaft before the stereoscope, whereby the focus and vertical relation of the picture to the lenses may belconstantly preserved, the

facility for exhibiting the stereoscopic pic- 1 tures is very greatly increased.

To prevent the keeper on the book from escaping from the shaft, as shown in Fig. 3, a

recess 16 is formed in the shaft near its end,

and on said keeper is mounted a spring-stop 1 17, arranged to en gages'ai'd 'reces's as the book approaches the end of the shaft, and thus provent it escaping therefrom. Y I

Having thus fully described my im provements, what I claim as my invention, and desire to secureby Letters Patent, is

. 1. The combination with the hood of a ste reoscope provided with suitable lenses, and

a shaft having a vertical portion adjustably j secured upon said h'ood and ahorizon tal portion, of a book of stereoscopic pictures s'l idt ingly mounted upon said horizontal portion of said shaft.

2. The combination with the hood of astereoscope provided with suital'ile lenses, and

a shaft having a Vertical portion adjustably secured upon said hood, and a horizontal 'por- 5 tio'n, of a book of stereoscopic pictures, and i a keeper on the lid or cover of said book 'ar- 5 ranged to b'e'ensaged by said horizontal p'ortion of said shaft, whereby said book is slidingly mounted thereon, substantially as set forth.

3. Thecombin'ation with the hood of a stereoscope and a shaft havinga vertical portion adjustably secured upon said hood, and a= horizontal portion, of -'a book of stereoscopic pictures sliding] y mountedii-po'n said horizontal portion of said snafu-said book comprising 1 a series of leaves, each consisting of a card on which said picture is mounted, a flexible portion and a thickened and stiffened heel, and alid or cover consisting of a board a flexible portion and a thickened heel, and oppositely-disposed bars or plates between which said leaves are mounted, and screws passing through said bars or plates whereby the same are 'ola-rnpe'd upon the heels of said leaves and the same held securely in place, substantially as set forth.

4. A book of stereoscopic pictures comprisin g a series of leaves each consisting of a card on which said picture is mounted, a flexible portion and a thickened and stiffened heel, and a lid-or 'cov-ereonsist in g of a board, a flexible portion and thickened heel, and oppositely-disposed bars or lpl-a'tes between which said leaves are mounted, and screws passing through said bars or plates whereby the same are 'c lamiped upon the heels of said leavesan-d the same are held securely in place, substantially as set forth.

5. The 'coin'binatioii with the hood of a stereoscope having suitable lenses, a shaft having a vertical portion adju stably secu red upon said hood and a horizontal portion provided with a recess near its outer end, of a book of stereoscopic pictures, -a keeper on the lid of said book adapted to be'engaged by said hori zontal portion of saidshaft, and aspringstop i mourned on said keeper and "arranged to engagesa-id recessin said horizontal po rt ion,substantial-ly as set forth.

ARTHUR w. JONES.

Witnesses:

O. A. Lucas, PERRY 'D. TROUTMAN. 

